CN104550746B - The limit for height feeding technology of fulcrum bearing - Google Patents
The limit for height feeding technology of fulcrum bearing Download PDFInfo
- Publication number
- CN104550746B CN104550746B CN201510022259.0A CN201510022259A CN104550746B CN 104550746 B CN104550746 B CN 104550746B CN 201510022259 A CN201510022259 A CN 201510022259A CN 104550746 B CN104550746 B CN 104550746B
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- China
- Prior art keywords
- fulcrum bearing
- feeding
- rising head
- rising
- head
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
Abstract
The present invention discloses a kind of limit for height feeding head structure of fulcrum bearing, the sand cores of castings of fulcrum bearing uses four layout structures of a type, including two the first rising heads and multiple second rising heads, first rising head is arranged on the centre of adjacent two fulcrum bearings core die cavity, spheroidal graphite cast-iron iron liquid is set to flow into intake tunnel by cast gate, flowed into four die cavities of fulcrum bearing by intake tunnel again, first rising head carries out feeding to the base plate of fulcrum bearing, second rising head is arranged in the window of each fulcrum bearing die cavity, and the second rising head is to carrying out feeding at the top of fulcrum bearing.The present invention attains choosing by science, it is structurally characterized in that top is thick big and its bottom whole body is thin-walled and does not process according to part, then the feeding head at top is arranged in the window of two oblique side positions, so, both it had been effectively guaranteed feeding liquid measure, so as to prevent the generation of shrinkage defect, in turn ensure that microscopic structure is fine and close, it is ensured that the dimensional accuracy of casting.
Description
Technical field
The present invention relates to auto parts manufacturing technology field, more specifically, it relates to the limit for height feeding technology of fulcrum bearing.
Background technology
Fulcrum bearing is a parts of automobile saddle, and itself structure is simultaneously uncomplicated, but with local thickness big structure and
The thick portion bottom whole body is thin-walled, when such as being manufactured on foundry production line, because the sandbox high unity specification of production line is
300mm, and the top of fulcrum bearing is thick big, extreme higher position of the thick big position in cast, is highly limited by static pressure molding line sandbox
System can not thereon place riser feeding, therefore, by sandbox height limitation, it is impossible to place rising head using on the top at thick big position
Feeding is, it is necessary to consider other processes to ensure the dimensional accuracy and castability of casting.
The content of the invention
It is an object of the invention to provide the limit for height feeding technology design for the high-order independent thick big position of fulcrum bearing, make branch
Bearing is suitable to be produced in batches on the foundry production line of existing sandbox, with the presence of overcoming the shortcomings of prior art.
The present invention solve its technical problem technical scheme be：The limit for height feeding technology of fulcrum bearing, using four cloth of a type
Office's structure, on the basis of conventional formative method, is designed with two the first rising heads and multiple second rising heads, and the first rising head is arranged on phase
The centre of adjacent fulcrum bearing die cavity, during cast, spheroidal graphite cast-iron iron liquid flows into intake tunnel by cast gate, then is flowed into by intake tunnel
In four die cavities of fulcrum bearing, the first rising head carries out feeding to the base plate of fulcrum bearing, and the second rising head is arranged on each fulcrum bearing die cavity
Window in, the second rising head is to carrying out feeding at the top of fulcrum bearing.
Preferably, the intake tunnel of the second rising head controls the timely closing of eck also as feeding head neck, makes magnesium iron stone
Inkization expansion switchs to self-complementary.
Preferably, the second rising head top is drilled, feeding pressure is increased by atmospheric pressure.
Preferably, the intake tunnel of the second rising head adds and puts cutout groove.
The beneficial effects of the invention are as follows：
The present invention attains choosing by science, according to being structurally characterized in that top is thick big of part its bottom be all over the body thin-walled and
Do not process, then the feeding head at top is arranged in the window of two oblique side positions, so, be both effectively guaranteed feeding
Liquid measure, so as to prevent the generation of shrinkage defect, in turn ensures that microscopic structure is fine and close, it is ensured that the dimensional accuracy of casting.
According to static pressure molding line template size, using four, a type, such a external hot riser can cast to two simultaneously
Part feeding, so as to take full advantage of the effective area of template, improves product yield.
Brief description of the drawings
Fig. 1 is fulcrum bearing cutting schematic perspective view.
Fig. 2 is using the fulcrum bearing casting upper die structure schematic diagram of fulcrum bearing limit for height feeding technology of the present invention.
Fig. 3 is fulcrum bearing casting lower die structure schematic diagram.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " transverse direction ", " on ", D score, "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " are based on accompanying drawing institute
The orientation or position relationship for showing, are for only for ease of the description present invention and simplify description, rather than the dress for indicating or implying meaning
Put or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the invention
System.Additionally, term " first ", " second " be only used for describe purpose, and it is not intended that indicate or imply relative importance or
The implicit quantity for indicating indicated technical characteristic.Thus, " first " is defined, the feature of " second " can be expressed or imply
Ground includes one or more this feature.In the description of the invention, unless otherwise indicated, " multiple " be meant that two or
Two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should broadly understood, for example, it may be being fixedly connected.Can also be detachably connected, or be integrally connected；Can
Being to mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
Two connections of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
The concrete meaning of invention.
Referring to Fig. 1, as can be seen that side is compared at the top 3 of fulcrum bearing during the schematic perspective view of cutting is split around from fulcrum bearing
The thickness of plate 2 much, therefore, in casting, molten steel solidification time at top relatively slow can arrange, it is necessary to make the corresponding of feeding
Apply.And, the area of base plate 1 of fulcrum bearing is relatively large, also in requisition for making feeding.Due to universal production line sandbox height gauge
It is very little to be limited, it is impossible to fenestrate with side sheet room at top according to the part using the conventional customary means from top fluid infusion feeding
The design feature of mouth 4, two rising heads are set using the space of the left and right window 4 using fulcrum bearing, make rising head fluid infusion from fulcrum bearing
The bottom at top 3 carry out, so as to by the height reduction of top feeding head, to adapt to the requirement of existing foundry production line.Ginseng
See Fig. 2-3, fulcrum bearing using four, a type layout type, be arranged symmetrically on upper mould 10 model cavity 14 in four fulcrum bearings,
Four fulcrum bearing drag chambers 15 are arranged symmetrically on lower mould 16, cast gate 11, intake tunnel 17 are located at the middle separated time of upper and lower mould
On, the first rising head 12 is set between the die cavity of each two fulcrum bearing, it is provided with the window's position of the die cavity of each fulcrum bearing
Second rising head 13.First rising head 12 is used to carry out fulcrum bearing base plate 1 feeding, and the second rising head 13 is used to enter fulcrum bearing top 3
Row feeding, its feature is mainly：
1. the oblique rising head of side addition second in the wicket of casting two, is ensured required using two liquid measures of rising head
Feeding iron liquid.
2., using the intake tunnel of the second rising head also as feeding head neck, the intake tunnel of rising head is also Feeding channel, is risen
Double action；The timely closing of eck is controlled, is switched to using Graphite Particles in Spheroidal Graphite Cast Ironization expansion self-complementary, can cause thick big position microscopic structure
It is close.
3. the second rising head top is drilled, feeding pressure is increased by atmospheric pressure.
4. Feeding channel adds to put and interrupts groove, is stopped slot thickness by controlling rising head, and rapping rising head in cleaning can be by it
Separated with casting, so as to casting deformation can be avoided to lose shape.Polishing workload can be reduced.
Other of the limit for height feeding technology of remaining structure fulcrum bearing of the invention are constituted and operated for this area
All it is known for technical staff, is not detailed herein.
Although an embodiment of the present invention has been shown and described, it will be understood by those within the art that：Not
Can these embodiments be carried out with various changes, modification, replacement and modification in the case of departing from principle of the invention and objective, this
The scope of invention is limited by claim and its equivalent, without creative work improvements introduced etc., all should be included
Within protection scope of the present invention.
Claims (2)
1. the limit for height feeding technology of fulcrum bearing, the fulcrum bearing includes base plate, side plate, top, top and side sheet room be provided with it is left,
Right two windows, the top of fulcrum bearing is thicker than side plate, it is characterised in that：Using four layout structures of a type, in conventional moulding side
On the basis of method, two the first rising heads and multiple second rising heads are designed with, the first rising head is arranged on the centre of adjacent fulcrum bearing die cavity,
During cast, spheroidal graphite cast-iron iron liquid flows into intake tunnel by cast gate, then is flowed into four die cavities of fulcrum bearing by intake tunnel,
First rising head carries out feeding to the base plate of fulcrum bearing, and the second rising head is arranged in the window of each fulcrum bearing die cavity, the second rising head pair
Feeding is carried out at the top of fulcrum bearing；The intake tunnel of the second rising head also as feeding head neck, controls the timely closing of eck, makes
Graphite Particles in Spheroidal Graphite Cast Ironization expansion switchs to self-complementary；Second rising head top is drilled, feeding pressure is increased by atmospheric pressure.
2. the limit for height feeding technology of fulcrum bearing according to claim 1, it is characterised in that：The intake tunnel of the second rising head adds
Put cutout groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022259.0A CN104550746B (en) | 2015-01-16 | 2015-01-16 | The limit for height feeding technology of fulcrum bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022259.0A CN104550746B (en) | 2015-01-16 | 2015-01-16 | The limit for height feeding technology of fulcrum bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104550746A CN104550746A (en) | 2015-04-29 |
| CN104550746B true CN104550746B (en) | 2017-07-07 |
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ID=53068409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510022259.0A Active CN104550746B (en) | 2015-01-16 | 2015-01-16 | The limit for height feeding technology of fulcrum bearing |
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| CN (1) | CN104550746B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201940532U (en) * | 2011-02-10 | 2011-08-24 | 山西华翔投资有限公司 | Sand mold of riser for placement of horizontal projected shoulder of casting |
| CN102259164A (en) * | 2011-07-08 | 2011-11-30 | 湖北丹江口志成铸造有限公司 | System and method for pouring flywheel of automobile |
| US20130025815A1 (en) * | 2011-07-29 | 2013-01-31 | Nibouar F Andrew | Down sprue core for use in casting railcar coupler knuckles |
| CN202185558U (en) * | 2011-08-04 | 2012-04-11 | 黄石东贝铸造有限公司 | Tension lock casting sand mould of high-speed rail |
| CN103785794A (en) * | 2012-10-26 | 2014-05-14 | 陕西重型汽车有限公司 | Heavy truck leaf spring bracket mold plate assembly |
| CN203281809U (en) * | 2013-05-09 | 2013-11-13 | 江苏力源金河铸造有限公司 | Casting riser structure |
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2015
- 2015-01-16 CN CN201510022259.0A patent/CN104550746B/en active Active
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| CN104550746A (en) | 2015-04-29 |
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